1 files changed, 5 insertions, 2 deletions

diff --git a/coreutils/printf.c b/coreutils/printf.c
index 72acbc751..76524f706 100644
--- a/coreutils/printf.c
+++ b/coreutils/printf.c
@@ -348,8 +348,11 @@ int printf_main(int argc UNUSED_PARAM, char **argv)
          * even if libc receives EBADF on write attempts, it feels determined
          * to output data no matter what. So it will try later,
          * and possibly will clobber future output. Not good. */
-        if (dup2(1, 1) != 1)
-                return -1;
+// TODO: check fcntl() & O_ACCMODE == O_WRONLY or O_RDWR?
+        if (fcntl(1, F_GETFL) == -1)
+                return 1; /* match coreutils 6.10 (sans error msg to stderr) */
+        //if (dup2(1, 1) != 1) - old way
+        //      return 1;
 
         /* bash builtin errors out on "printf '-%s-\n' foo",
          * coreutils-6.9 works. Both work with "printf -- '-%s-\n' foo".